Activated carbon activation is one of the most important steps in the production of activated carbon. The main reason is that the water in the raw materials is evaporated by the external heat supply. The temperature is controlled at about 150 degrees, and the temperature is not high, so the chemical composition of the wood materials remains unchanged.

The caramel decolorization rate of powdered activated carbon reflects the adsorption performance of powdered activated carbon to colored substances.

4 to 8 orders, activated carbon is a common type of air purification materials, are mainly used for adsorption of trace harmful gases in the air, 8 orders and 4 - granular activated carbon is a kind of very small, there is a lot of surface area, and more tiny holes in the granular - capillary. The capillary has very strong adsorption capacity, due to the granular surface area is large, so can contact fully with gas (impurities), when the gas (impurities) encounter capillary was adsorption, purifying effect. This product USES the physical action of activated carbon deodorize, moisture-proof.

5-10 mesh coal granule activated carbon has developed micropore and has obvious adsorption effect on harmful substances in gas phase. Activated carbon property stability, non-toxic, the prospects of activated carbon: physical performance indicators: strength, specific surface area, particle size distribution, apparent density, intensity index: 90.0% or greater surface area and iodine adsorption value, phenol adsorption value, carbon tetrachloride adsorption, etc.

8 and 20 home in addition to flavor, also known as domestic activated carbon, activated carbon for physical adsorption principle, in the process of role, relying on air as medium, adsorption of harmful substances in the air, therefore is defined as a passive air purification materials.

20-40 mesh activated carbon powder can effectively adsorb low concentration nitrogen oxides. In the past, air purification mainly depended on the oxidation of copper and silver on the impregnated activated carbon, but the purification capacity was low. The technology of simultaneous denitrification and desulfurization in the same reactor is still in the development and research stage at home and abroad.